Results 1 to 10 of about 29,708 (278)
Study of the adsorption of reactive blue 50 on zero valent iron
Mongolian Journal of Chemistry, 2014 In this study, removal efficiency of the Reactive blue 50 and adsorption mechanism on the zero valent iron were investigated. Reactive blue 50 which is used to wool and cashmere dyeing were selected due its non-biodegradable and metabolic stability ...
D Sarangerel +3 more
doaj +1 more source
Coefficient bounds for \(p\)-valent functions
Open Journal of Mathematical Analysis, 2023 This present paper introduces two new subclasses of p-valent functions. The coefficient bounds and Fekete-Szego inequalities for the functions in these classes are also obtained.
Olusegun Awoyale, Timothy Oloyede Opoola
openaire +1 more source
On certain classes of $p$-valent functions [PDF]
Časopis pro pěstování matematiky, 1988 Let \(K^*_{n+p-1}\) be a class of p-valent functions of the form \(f(z)=z^ p-\sum^{\infty}_{k=1}a_{p+k}z^{p+k},\) \(a_{p+k}\geq 0\), for \(k=1,2,...\), and such that \(Re(D^{n+p}f(z)/D^{n+p-1}f(z))>\) for \(| z|
openaire +2 more sources
On the starlikeness of p-valent functions
TURKISH JOURNAL OF MATHEMATICS, 2019 Summary: For an analytic function in open unit disk \(\mathbb{D}\), we consider the \(p\)-valent analogue of the Noshiro-Warschawski univalence condition. We apply the Fejér-Riesz inequality to establish some sufficient conditions for functions to be \(p\)-valent or to be a Bazilevič function or to be in some other classes.
Mamoru NUNOKAWA +3 more
openaire +1 more source
Certain Coefficient Bounds for p-Valent Functions
International Journal of Mathematics and Mathematical Sciences, 2007 In the present paper, the authors obtain sharp bounds for certain subclasses of p-valent functions. The results are extended to functions defined by convolution.
C. Ramachandran +2 more
doaj +1 more source
BMC Infectious Diseases, 2007 Background Polysaccharide pneumococcal vaccine is recommended for use in HIV-infected adults in Brazil but there is uncertainty about its effectiveness in this patient population. The main objective of this study was to assess the effectiveness of the 23-
Veras Maria +3 more
doaj +1 more source
CERTAIN CLASSES OF p-VALENT ANALYTIC FUNCTIONS
Demonstratio Mathematica, 1996 Using the notions of subordination and Ruscheweyh derivatives, the authors define new classes of \(p\)-valent functions analytic in the unit disk. The authors succeed in generalizing classes considered before by introducing six parameters. They prove results on inclusions, integral operators, Taylor coefficients and Hadamard products for such functions.
Patel, J., Acharya, M.
openaire +2 more sources
Subclasses of meromorphically p-valent functions [PDF]
AIP Conference Proceedings, 2014 The aim of this paper is to investigate various inclusion relations and some other properties of a certain sub-classes Σγ,pm(α) of meromorphically p-valent analytic functions with positive coefficients, which are defined here by means of a linear operator.
Nasser Alkasbi, Maslina Darus
openaire +1 more source
On certain classes of meromorphically p-valent starlike and p-valent quasi-convex functions
Tamkang Journal of Mathematics, 2013 By making use of a familiar analogue of the generalized hypergeometric function, we introduce and investigate some inclusion properties of certain class of meromorphically p-valent starlike functions of order $\lambda \ $ and certain class of meromorphically p-valent quasi-convex functions of order $\lambda $.
Janusz Sokol, Jacek Dziok, M. K. Aouf
openaire +2 more sources
Notes on certain p-valent functions [PDF]
General Mathematics, 2019 Abstract Let Ap be the class of functions f(z) which are analytic in the open unit disk U. Applying some subordinations for functions, some interesting properties for f(z) ∈Ap are showed. Our results are generalizations for results given before.
Mugur Acu, Shigeyoshi Owa
openaire +1 more source